Hydrocarbon-burner



F. F. PARRISH.

HYDROCARBON BURNER.

APPLICATION man 1AN.4.1916.

Pat-ented Aug. 15, 196.

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FREDERICK PARRISI-I, OF LOS ANGELES, CALIFORNIA.

HYDROCARBON-BURNER.

Speciication of Letters Patent. Patentd Aug'. 15, 1916.

Application filed January 4, 1916. Serial No. 70,197.

To all whom t may concern Be it known that I, FREDERICK F. PAR- nrsrr, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Hydrocarbon-Burners, of which the following is a specification.

This invention relates to a hydrocarbon burner and particularly pertains to a hydrocarbon burner which is especially adapted for use in the fire box ofcoolr stoves, ranges, heaters, furnaces, and the like. f

It is the object of this invention to provide a hydrocarbon burner which is so constructed that it may be readily applied to and removed from cook stoves, ranges, furnaces, and heaters of the types now generally in use.

Another object is to provide a burner of the above character which is simple in construction and comprises few parts, which can be readily manufactured and assembled at small cost.

Another obj ect is to provide a burner which is especially adapted for use in burning distillate and similar combustible oils, and which is so constructed as to insure volatilization of the liquid delivered thereto and the mixture of air therewith to insure prac- Y tically complete combustion, and thereby obtain a high heating efficiency.

A further object is to provide a hydrocarbon burner which employs a drip feed through which the hydrocarbon fuel is introduced through the top of the stove or range into the burner together with a volume of air to support the combustion of the fuel and which embodies means whereby the flames and products of combustion generated in the burner will be spread and directed out one side of the burner and` will also be directed laterally at theV ends of the burner into the end portions of a fire box.

Other objects will appearhereinafter.

The invention is illustrated in the accompanying drawings in which:

Figure 1 is a viewin vertical section through the lire box -of a stove or range showing the invention as applied and illustratin g the burner in transverse vertical seotion and partly in elevation. Fig. 2 isa perspective view of the burner-as removed. Fig. 3 is a view in horizontal section in reduced scale, as seen on the line 3 3 of Fig. 1. Fig. 1 is a view in perspective illustrating a modified form of the invention and showing it as adapted to be applied to va heater or furnace.

-the base 6 serving to close the openings between the grate bars to prevent the passage of air therethrough. The grate openings,

however, may be closed in any desired manner. Formed on the upper face of the base 6 preferably centrally thereof, is a boss 11 having a depression 12 in its upper face adapted to receive a tapered stem 13 which is rigidly seated therein. The stem 13 extends upwardly a short distance above the base 6 and is formed with a head 141 on its upper end having a domed upper face 15 forming a spreading surface and by means of which drops of hydrocarbon fuel fed to the upper face of the head 14, as later described, will be distributed.

Extending above the base 6 and spaced therefrom and from the upper face of the head 14, is a horizontally disposed baffle plate or cover 16 which preferably conforms in outline to the base 6. The plate 16 is formed with a dependent wall 17 extending along one side thereof and the lower edge of which isadapted to seat on the upper edge of the Harige 7, as shown in Figs. 1 and 2; the wall 17 forming a fire back which is disposed adjacent the fuel spreader to prevent the spreading of the flames generated from the burner to one side thereof and to direct them to the front and ends of the burner. Formed on the rear edge of the plate 16 adjacent its ends are dependent leg .members 18and 19 which are adapted to seat on the flange 7; the fire back 17 and leg members 18 and 19 thus forming a support for the plate 16 by which the latter is .held in position in spaced relation to the base 6. The plate 16 serves as a baffle to direct the flames generated` the-rebeneath, horizontally and also to permit air being directed downwardly on the upper face of the spreading member centrally thereof.

`The plate 16 is formed with a circular central air and fuel inlet opening 2() which is disposed concentric with the vertical center of the dome spreading face 15 and is preferably formed with slightly convergent side walls. The lid 21 of the stove disposed above the central portion of the burner, is spaced from the plate 16, as shown in Fig. 1, and is formed with an opening 22 of a diameter slightly in excess of the diameter of the opening 2O in the plate 16 and arranged concentric therewith.

Extending through the opening 22 is a down draft tube 23 having slightly convergent side walls and formed with an annular flange 24 on its upper edge adapted to seat on the lid 21. The lower portion of the tube 23 projects through the opening 20 in the plate 16 and engages the walls of the latter. The lower end of the tube 28 opens beneath the plate 16 a short distance above the spreader face 15 and forms an open communication between the atmosphere exteriorly Vof the stove 10 and the interior of the burner beneath the plate 16.

Extending into the tube 23 is a drip nozzle 25 formed on a. tube 26 connecting with a source of hydrocarbon fuel supply through a pipe or conduit 27; a regulating valve 28 of any suitable construction being interposed between the tube 26 and pipe 27 by means of which the flow of fuel through the drip nozzle 25 may be regulated.

In the operation of the invention the hydrocarbon fuel, such as distillate, is fed through the drip nozzle 25 in drops which fall toward the domed spreading face 15. The fuel being previously ignited and V burned around and on the spreader head 14,

therlatter becomes intensely heated so that the lighter portions of the fuel in falling toward the spreader face through a heated zone surrounding the latter, become volatilized and when mixed with the proper' prov portion of air are combusted at a point adjacent the spreading face 15. 'Ihe air for supporting thecombustion of the fuel is drawn downwardly through the convergent tube 23 and enters the space beneath the plate 16 andabove the spreader face 15 to the combustion zone. The passage of the air being confined by the tube, it is drawn into the burner with considerable velocity which vcauses a. complete mixture with the combustible gases and thereby insures the generation of an intense heat with consumption of a small volume of fuel. The heavier constituents of the hydrocarbon fuel which are not volatilized and burned before striking the spreading face 15, fall upon the latter and are sufficiently heated by contact therewith to become gasilied and combusted. The draft drawn downwardly through the tube 23 is directed against the dome face 15 and spread sothat the flames and products of combustion generated in the burner will the lire wall 17 on the plate 16 so as to be detachably connected to the base 6, the wall 17 may be disposed either at the front or back of the spreader by turning the plate 16. This permits the flames being directed either toward the front or back of the fire box.

In the modified form of the invention shown in Fig. 4 the fire wall indicated at 17 is disposed at the end of the burner and the feed opening 20 is arranged in the top plate 16 adjacent thereto with the spreader therebeneath. This construction permits of the burner being inserted in the opening of the ordinary heater or furnace with the feed shown. v Y

It is manifest that the shape of the base 6 and the baffle plater16 may be varied as occasion requires and that while the fire back 17 and leg members 18 and 19 are shown as Vformed integral with the baflie plate 16 they may be obviously formed on the base plate 6; the essential feature being to provide a not subjected to the action of the flames in the lire box which would carbonize the fuel and clog the nozzle were the latter positioned within the fire box. Furthermore, by

larranging the nozzle in the down draft tube `it is kept cool by the draft of air passing therearound.

What I claim is:

l. A hydrocarbon burner comprising a base plate, a spreader mounted on said base plate, a baffle plate extending above the base plate and spreadera lire back adjacent the spreader whereby flames generated in thecombustion zone between the spreader and baffle plate will be confined to spread horizontally, the burner thus formed having `three open sides, and means for introducing air and hydrocarbon fuel thro-ugh the baffle `plate centrally of the spreader.

2. AV hydrocarbon burner comprising a base, a spreader on said base, a horizontally extending baffle plate spaced from said base opening 20 disposed exteriorly thereof, as

having an opening therein concentric with the vertical axis of the spreader, a re back wall extending between the base and the baffle plate at one side of the spreader, terminating adjacent the ends of the base leaving open spaces between the ends of the base and the baffle plate thereabove, means coperating with the fire back for supporting the ballie plate, and a tube having convergent side walls extending into the opening in the baffle plate through which air and hydrocarbon fuel may be delivered downwardly and directed centrally of the spreader.

3. A hydrocarbon burner comprising a base plate formed with an upwardly projecting marginal ange forming a depression in its upper face, a vertically disposed stem seated in said depression, a spreader carried by said stem having a domed upper face, a horizontally extending baffle plate arranged above the base plate and spreader having a central opening arranged concentric with the vertical axis of the spreader, a lire back formed on said baffle plate at one edge thereof and depending therefrom, said fire back adapted to seat on the flange of the base member to one side of the spreader terminating adjacent the ends of the base leaving open spaces between the ends of the base and the baffle plate thereabove, a pair n Liv may be delivered to the combustion zone between the spreader and the under side of the balile plate.`

4. The combination with a fire box having a top wall, of a burner base plate in the fire box having a depression on its upper face, a fire back wall extending upwardly from the base plate along one of its edges terminating adjacent its ends, the space above the ends and the other side of the base opening direct to the lire box forming three open sides above the margin of the base plate, a spreader extending upwardly from the base plate in front of the fire back wall, and a down draft tube extending through the cover and through the top wall of the fire box and opening above the spreader in spaced relation thereto so that a free passage of air may be had between the lower end of the down draft tube and the spreader and from thence throughout the fire box at the ends and one side of the base plate.

In testimony whereof I have signed my name to this specification.

FREDERICK F. PARRISH.

Copies of this patent may be obtained for ve cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

